There are way more accidents in Yosenite involving hikers than climbers, and many more rescues required. Climbers sort of have an idea what they're getting into, vs hikers who go to the edge and look down to watch the climbers. I was once hit by a rock (while clibing)knocked off by a hiker 300 feet above, fortunately it was small.

Also the 100% concentration helps. I've climbed all day in Yosemite valley with nothing but a scrape on my knee from sharp granite, then tripped over a telephone pole in the parking lot...
Jim YMMV
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These are my own opinions based on wisdom earned through many wrong decisions. Your mileage may vary.